1 files changed, 30 insertions, 1 deletions
diff --git a/cli/tests/unit/read_file_test.ts b/cli/tests/unit/read_file_test.ts
index 0d3cdf422..cae9037ab 100644
--- a/cli/tests/unit/read_file_test.ts
+++ b/cli/tests/unit/read_file_test.ts
@@ -1,5 +1,10 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import { unitTest, assert, assertEquals } from "./test_util.ts";
+import {
+  unitTest,
+  assert,
+  assertEquals,
+  pathToAbsoluteFileUrl,
+} from "./test_util.ts";
 
 unitTest({ perms: { read: true } }, function readFileSyncSuccess(): void {
   const data = Deno.readFileSync("cli/tests/fixture.json");
@@ -10,6 +15,17 @@ unitTest({ perms: { read: true } }, function readFileSyncSuccess(): void {
   assertEquals(pkg.name, "deno");
 });
 
+unitTest({ perms: { read: true } }, function readFileSyncUrl(): void {
+  const data = Deno.readFileSync(
+    pathToAbsoluteFileUrl("cli/tests/fixture.json")
+  );
+  assert(data.byteLength > 0);
+  const decoder = new TextDecoder("utf-8");
+  const json = decoder.decode(data);
+  const pkg = JSON.parse(json);
+  assertEquals(pkg.name, "deno");
+});
+
 unitTest({ perms: { read: false } }, function readFileSyncPerm(): void {
   let caughtError = false;
   try {
@@ -34,6 +50,19 @@ unitTest({ perms: { read: true } }, function readFileSyncNotFound(): void {
   assert(data === undefined);
 });
 
+unitTest({ perms: { read: true } }, async function readFileUrl(): Promise<
+  void
+> {
+  const data = await Deno.readFile(
+    pathToAbsoluteFileUrl("cli/tests/fixture.json")
+  );
+  assert(data.byteLength > 0);
+  const decoder = new TextDecoder("utf-8");
+  const json = decoder.decode(data);
+  const pkg = JSON.parse(json);
+  assertEquals(pkg.name, "deno");
+});
+
 unitTest({ perms: { read: true } }, async function readFileSuccess(): Promise<
   void
 > {